myopia
Conditions
Interventions
intervetion group:BCL application after FS-LASIK
control group:no BCL application after FS-LASIK
Sponsors
Department of Ophthalmology, 181 Hospital of the PLA
Eligibility
Sex/Gender
All
Age
18 Years to 33 Years
Inclusion criteria
Inclusion criteria: 1. patients who want to take off glasses and desire to have reasonable expectations for results; 2. aged above 18 years old; on the basis of full understanding patients before surgery for themselves and their families must jointly sign the consent form; 3. basic stability of refraction ( myopia diopter number of annual growth of no more than 0.50 D ) for over 2 years; 4. refraction: myopia less than -10.00 D, astigmatism less than -6.00 D,
Exclusion criteria
Exclusion criteria: 1. High hopes for surgery; 2. Suspected, and have been diagnosed with keratoconus, or other types of expansion of the cornea; 3. Corneal thickness is unable to meet the ablation depthcentral corneal thickness 47 D ) or over flat (curvature of the cornea <38 D); 5. The refractive state of instability, more than 1.00 D refractive changes every 2 years; 6. Moderate to Severe dry eye; 7. Incomplete closure of the palpebral fissure, ocular adnexal diseases: such as eyelid defects, deformation and so on; 8. Systemic connective tissue disease and autoimmune diseases, such as systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis; 9. Corneal disease: corneal epithelial adhesion is poor, such as epithelial Basement Membrane malnutrition, recurrent corneal erosions ; or Endothelial corneal dystrophy, had a history of herpes simplex viral keratitis; 10. Active inflammation reactions and infections of the eye; 11. Glaucoma and cataracts affect vision; 12. Anxiety, depression and other psychiatric symptoms; 13. abnormal anatomy of the orbit, eyelids, or eyeball, which affect Femtosecond laser work; 14. diabetes; 15. Pregnant and lactating women; 16. patients who are taking certain systemic medications such as corticosteroids, estrogens, progesterone, immunosuppressive drugs, the antidepressant drug.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain score;Photophobia score;Foreign body sensation score;Tears score;preoperative refraction;postperative refraction;preoperative best spectacle-corrected visual acuity;postoperative uncorrected visual acuity;postperative best spectacle-corrected visual acuity;the wound healing response of the flap margin after surgery; | — |
Secondary
| Measure | Time frame |
|---|---|
| preoperative and postoperative intraocular pressure;preoperative corneal thickness; | — |
Countries
China
Contacts
Public ContactLi-Quan Zhao
Department of Ophthalmology, 181th Hospital of the PLA
Outcome results
None listed